Certain Provisions of the ENLK Partnership Agreement - Narrative and Distributions (Details) - USD ($) $ in Millions			1 Months Ended		3 Months Ended								9 Months Ended
	May 13, 2022	Feb. 11, 2022	Jan. 31, 2022	Dec. 31, 2021	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2022	Sep. 30, 2021
Partnership agreement
Total consideration paid													$ 50.5	$ 0.0
Series B Preferred Unitholders
Partnership agreement
Stock redeemed during period (in shares)			3,333,334
Total consideration paid			$ 50.5
Redemption price of preferred stock (as a percent)			101.00%
Distribution paid-in kind (in shares)					0	0	0	0	151,626	151,248	150,871	150,494
Cash distributions					$ 17.3	$ 17.3	$ 17.5	$ 19.2	$ 17.1	$ 17.0	$ 17.0	$ 16.9
Series B Preferred Unitholders | Limited Partner | Fourth Quarter of 2021
Partnership agreement
Distributions preferred units				$ 0.9
Series B Preferred Unitholders | Limited Partner | January 2022
Partnership agreement
Distributions preferred units		$ 17.3	$ 1.0
Series B Preferred Unitholders | Limited Partner | First Quarter of 2022
Partnership agreement
Distributions preferred units			$ 0.3
Series B Preferred Unitholders | Limited Partner | May 2022
Partnership agreement
Distributions preferred units	$ 17.2
Series B Preferred Unitholders | EnLink Midstream Partners, LP
Partnership agreement
Preferred units, issued (in shares)				57,501,693	54,168,359			57,501,693					54,168,359
Preferred units, outstanding (in shares)				57,501,693	54,168,359			57,501,693					54,168,359
Series C Preferred Unitholders
Partnership agreement
Distribution paid-in kind (in shares)					0				0				12,000,000	12,000,000
Series C Preferred Unitholders | EnLink Midstream Partners, LP
Partnership agreement
Preferred units, issued (in shares)				400,000	400,000			400,000					400,000
Preferred units, outstanding (in shares)				400,000	400,000			400,000					400,000